5-2 Troubleshooting
MN718
Table 5-1 Fault Messages
FAULT MESSAGE
DESCRIPTION
Current Sens FLT
Defective phase current sensor or open circuit detected between control board and current
sensor.
DC Bus High
Bus over voltage condition occurred.
DC Bus Low
Bus under voltage condition occurred.
Encoder Loss
Encoder coupling slipping or broken; noise on encoder lines, encoder power supply loss or
defective encoder.
External Trip
An external over temperature condition occurred or open circuit on J1-16.
Following Error
Excessive following error detected between command and feedback signals.
GND FLT
Low impedance path detected between an output phase and ground.
INT Over-Temp
Temperature of control heatsink exceeded safe level.
Invalid Base ID
Control does not recognize power base ID.
Inverter Base ID
Control board installed on power base without current feedback.
Line Regen FLT
Only applies to Series 21H and 22H Line Regen controls.
Logic Supply FLT
Logic power supply not working properly.
Lost User Data
Battery backed RAM parameters have been lost or corrupted.
When fault cleared (Reset), the control will reset to factory preset values.
Low INIT Bus V
Insufficient bus voltage on startup.
Memory Error
EEPROM error occurred. Contact Baldor.
New Base ID
Control board was changed since last operation.
No Faults
Fault log is empty.
No EXB Installed
Programmed operating mode requires an expansion board.
Over Current FLT
Instantaneous over current condition detected by bus current sensor.
Overload - 1 min
Output current exceeded 1 minute rating.
Overload - 3 sec
Output current exceeded 3 second rating.
Over speed
Motor RPM exceeded 110% of programmed MAX Motor Speed.
m
P Reset
Power cycled before the residual Bus voltage reached 0VDC.
PWR Base FLT
Desaturation of power device occurred or bus current threshold exceeded.
Regen R PWR FLT
Regen power exceeded DB resistor rating.
Resolver Loss
Resolver feedback problem is indicated (if resolver used).
Torque Prove FLT
Unbalanced current between all 3 motor phases.
User Fault Text
Custom software operating fault occurred.
Summary of Contents for 18H Series
Page 1: ...SERIES 18H AC Flux Vector Control Installation Operating Manual 9 97 MN718 VECTOR DRIVE ...
Page 105: ...Section 1 General Information 5 18 Troubleshooting MN718 ...
Page 109: ...Section 1 General Information 6 4 Manual Tuning the Series 18H Control MN718 ...
Page 144: ...Appendix C Appendix C 1 MN718 ...